MIL-DTL-38999 Series I connectors are designed for harsh environments, with up to 128 contacts housed in an environmentally sealed insert. Operating between -65°C and 200°C, these connectors offer reliability in extreme conditions. Featuring various mounting options such as front and rear wall mount receptacles, they are compatible with RFI grounding plugs. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts for secure connections. Constructed with high-strength aluminum shells, they come in a range of plating options including cadmium-free finishes. Meeting MIL-DTL-38999 I specifications, these connectors are ideal for military and industrial applications requiring durability and performance.